Transformer assembly for power supply



FIG. 1 is a top front and right side perspective view of an a transformer assembly for power supply showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a transformer assembly for power supply, as shown. 